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Year : 2013  |  Volume : 3  |  Issue : 2  |  Page : 50-52

Intermittent left bundle branch block caused by coronary vasospasm

Department of Hospital Medicine, Saint Joseph Mercy Health System, Ann Arbor, MI, USA

Correspondence Address:
Mohammad Alhaji
Department of Hospital Medicine, Saint Joseph Mercy Health System, Ann Arbor, MI
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2231-0770.114129

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Intermittent left bundle branch block (LBBB) has been reported in the literature following certain conditions such as cardiac blunt trauma, myocardial infarction (MI) or exercise induced LBBB. In the majority of cases, the patients usually have underlying coronary arteries disease. LBBB often prevents the electrocardiographic diagnosis of acute MI; therefore, new LBBB in the setting of chest pain is usually treated as transmural MI. We describe a case of patient who presented with intermittent LBBB associated with chest pain, and subsequently the patient was taken to the catheterization laboratory for emergency coronary angiogram, which revealed 80% spasm in left anterior descending artery, which was totally relieved by nitroglycerin infusion. No other significant CAD was noted.

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